Sunny Health & Fitness Power Cage Squat Rack Upgrade Attachments, Dip Bar, Plate Bar Holder, Belt Squat, J Hook, Lat, Adapter, U Ring, Pull Up Bar, Landmine, Captain's Chair, Tricep Rope For Home Gym

https://a.co/d/06CnH44P That is the only one I have ever found, and it is unfortunately tailor made for that squat stand with no adjustability. Why no one has thought to make a Captain's chair style Y dip attachment for 3x3 racks is beyond me. Given the cost of said attachments though, maybe getting a power tower is just the answer we have to deal with.